﻿/*
	Copyright 2010 Intuitive Solutions

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	   http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
*/

using System;

namespace Metamorph.Core.Bpm.Events
{
	public class MessageEvent : Event
	{
		protected string sMessage;

		public MessageEvent() :
			base()
		{
		}

		public MessageEvent(string sName) :
			base(sName)
		{
		}

		public MessageEvent(string sName, EventType etEventType) :
			base(sName, etEventType)
		{
		}

		public string Message
		{
			get
			{
				return sMessage;
			}
			set
			{
				sMessage = value;
			}
		}

		#region IShape Members

		public override void Init(IBusinessProcess bpBusinessProcess)
		{
			if (EventType.Start.Equals(etEventType))
			{
				bpBusinessProcess.Interrupt = true;
			}

			MetamorphManager.Instance.EventManager.Subscribe(this, bpBusinessProcess);
		}

		public override void Next(IBusinessProcess bpBusinessProcess)
		{
			if (bpBusinessProcess.CurrentMessage != null)
			{
				ActionDispatcher.Instance.ExecuteMessage(sMessage, bpBusinessProcess.ProcessContext, bpBusinessProcess.CurrentMessage);
			}

			bpBusinessProcess.ExecutionStack.Peek().CurrentShape = tTransition.Target;
		}

		public override void Uninit(IBusinessProcess bpBusinessProcess)
		{
			MetamorphManager.Instance.EventManager.Unsubscribe(this, bpBusinessProcess);
		}

		public override bool CanGo(IBusinessProcess bpBusinessProcess)
		{
			return true;
		}

		#endregion
	}
}
